Due to the influence of joint fissure, mining intensity, designed slope angle, underground water and rainfall, the failure process of mine slope project is extremely complicated. The current safety factor calculation ...Due to the influence of joint fissure, mining intensity, designed slope angle, underground water and rainfall, the failure process of mine slope project is extremely complicated. The current safety factor calculation method has certain limitations, and it would be difficult to obtain the reliability index when the performance function of reliability analysis is implicit or has high order terms. Therefore, with the help of the logistic equation of chaos theory, a new algorithm of mine slope reliability based on limiting state hyper-plane is proposed. It is shown that by using this new reliability algorithm the calculation of partial derivative of performance function is avoided, and it has the advantages of being simple and easy to program. The new algorithm is suitable for calculating the reliability index of complex performance function containing high order terms. Furthermore, the limiting state hyper-plane models of both simplified Bishop's and Janbu's method adaptive to slope project are obtained, and have achieved satisfactory effect in the study of mine slope stability in Dexing copper open pit.展开更多
As the two fundamental aspects of modern society,the emergency state and the routine state are not exceptions to the rule of law.They just abide by special legal rules and must adhere to the spirit of the rule of law,...As the two fundamental aspects of modern society,the emergency state and the routine state are not exceptions to the rule of law.They just abide by special legal rules and must adhere to the spirit of the rule of law,such as human rights protection and power restrictions and apply the principle of proportionality.In a state of emergency,public interests are faced with major and urgent threats.In this state,the positioning of the purpose,the examination of the consequences,or the measurement of the legal benefits of the purpose and the consequences all have a certain degree of particularity and complexity.In order to increase the rationality of the principle of proportionality in the state of emergency,and to perform its value function scientifically and effectively,it is necessary to adopt loose application standards based on the characteristics of the state of emergency,grasp the key application links,and limit the scope of application to the review of the rationality of the exercise of emergency powers.Judgment of the legitimacy of the purpose of the exercise of emergency powers and the derogation of civil rights such as human dignity are not within the scope of the principle of proportionality.展开更多
The human gastrointestinal tract harbors a complex microbiota,pivotal in maintaining health equilibrium.Disruption of this microbial balance has implications for myriad health conditions.Probiotics,beneficial microbia...The human gastrointestinal tract harbors a complex microbiota,pivotal in maintaining health equilibrium.Disruption of this microbial balance has implications for myriad health conditions.Probiotics,beneficial microbial entities,have demonstrated potential in rectifying gut microbiota imbalances,offering health benefits and disease prevention.This review elucidates the nuanced roles of probiotics,emphasizing their interactions with both pathogenic and commensal gut microorganisms.Recent breakthroughs in the identification of potent probiotic strains and their prospective applications in biomedical research are delineated.Comprehensive analyses of clinical studies underscore the safety,efficacy,and applicability of probiotics in diverse food and therapeutic avenues.As probiotic research burgeons,this review amalgamates current insights with future directions,accentuating the transformative prospects of probiotics in contemporary biomedical paradigms.The gut's micro-flora plays a cardinal role in nutrient metabolism,immune modulation,and protection against pathogens.Disturbances in this microflora can lead to dysbiosis,with potential repercussions for digestive and systemic health.Probiotics exert their beneficial effects through multiple mechanisms,including competitive exclusion of pathogens,production of antimicrobial substances,and modulation of the host's immune response.Their health benefits encompass not only gastrointestinal health,such as in the management of diarrhea,irritable bowel syndrome,and inflammatory bowel diseases but also systemic effects in areas like immune modulation and mental health.The growing recognition of these benefits has led to a surge in the market demand for probiotic supplements and fortified foods,with research continually unveiling novel strains and applications.展开更多
Subject Code:B02With the support by the National Natural Science Foundation of China and the National Basic Research Program of China,the research team led by Prof.Xia Haiping(夏海平)of Xiamen University described the...Subject Code:B02With the support by the National Natural Science Foundation of China and the National Basic Research Program of China,the research team led by Prof.Xia Haiping(夏海平)of Xiamen University described the first example of CCCCC pentadentate chelate with all binding atoms being carbon atoms.This result represents a new record of planar carbon coordination number for a transition metal,which was展开更多
基金Project(2013BAB02B05)supported by National Science and Technology Support Program of ChinaProject(2013JSJJ029)supported by the Teacher Fund of Central South University,ChinaProjects(51074177,41372278)supported by the National Natural Science Foundation of China
文摘Due to the influence of joint fissure, mining intensity, designed slope angle, underground water and rainfall, the failure process of mine slope project is extremely complicated. The current safety factor calculation method has certain limitations, and it would be difficult to obtain the reliability index when the performance function of reliability analysis is implicit or has high order terms. Therefore, with the help of the logistic equation of chaos theory, a new algorithm of mine slope reliability based on limiting state hyper-plane is proposed. It is shown that by using this new reliability algorithm the calculation of partial derivative of performance function is avoided, and it has the advantages of being simple and easy to program. The new algorithm is suitable for calculating the reliability index of complex performance function containing high order terms. Furthermore, the limiting state hyper-plane models of both simplified Bishop's and Janbu's method adaptive to slope project are obtained, and have achieved satisfactory effect in the study of mine slope stability in Dexing copper open pit.
文摘As the two fundamental aspects of modern society,the emergency state and the routine state are not exceptions to the rule of law.They just abide by special legal rules and must adhere to the spirit of the rule of law,such as human rights protection and power restrictions and apply the principle of proportionality.In a state of emergency,public interests are faced with major and urgent threats.In this state,the positioning of the purpose,the examination of the consequences,or the measurement of the legal benefits of the purpose and the consequences all have a certain degree of particularity and complexity.In order to increase the rationality of the principle of proportionality in the state of emergency,and to perform its value function scientifically and effectively,it is necessary to adopt loose application standards based on the characteristics of the state of emergency,grasp the key application links,and limit the scope of application to the review of the rationality of the exercise of emergency powers.Judgment of the legitimacy of the purpose of the exercise of emergency powers and the derogation of civil rights such as human dignity are not within the scope of the principle of proportionality.
文摘The human gastrointestinal tract harbors a complex microbiota,pivotal in maintaining health equilibrium.Disruption of this microbial balance has implications for myriad health conditions.Probiotics,beneficial microbial entities,have demonstrated potential in rectifying gut microbiota imbalances,offering health benefits and disease prevention.This review elucidates the nuanced roles of probiotics,emphasizing their interactions with both pathogenic and commensal gut microorganisms.Recent breakthroughs in the identification of potent probiotic strains and their prospective applications in biomedical research are delineated.Comprehensive analyses of clinical studies underscore the safety,efficacy,and applicability of probiotics in diverse food and therapeutic avenues.As probiotic research burgeons,this review amalgamates current insights with future directions,accentuating the transformative prospects of probiotics in contemporary biomedical paradigms.The gut's micro-flora plays a cardinal role in nutrient metabolism,immune modulation,and protection against pathogens.Disturbances in this microflora can lead to dysbiosis,with potential repercussions for digestive and systemic health.Probiotics exert their beneficial effects through multiple mechanisms,including competitive exclusion of pathogens,production of antimicrobial substances,and modulation of the host's immune response.Their health benefits encompass not only gastrointestinal health,such as in the management of diarrhea,irritable bowel syndrome,and inflammatory bowel diseases but also systemic effects in areas like immune modulation and mental health.The growing recognition of these benefits has led to a surge in the market demand for probiotic supplements and fortified foods,with research continually unveiling novel strains and applications.
文摘Subject Code:B02With the support by the National Natural Science Foundation of China and the National Basic Research Program of China,the research team led by Prof.Xia Haiping(夏海平)of Xiamen University described the first example of CCCCC pentadentate chelate with all binding atoms being carbon atoms.This result represents a new record of planar carbon coordination number for a transition metal,which was
